Aslide

It was a rare thing for these boats to be upon the canal and their appearance generally caused no little excitement among skaters, especially the timid; but to-day every ice-boat in the country seemed afloat or rather aslide, and the canal had its full share.

Source: wiktionary

A shower of cinders through the air . . . A grind of blocks of slag aslide . . .

Source: wiktionary

Another [dance], in which one man seemed to fly, one to pursue, in which the hunted seemed to invite the hunter, with a swift skirting movement, his feet aslide, and one elbow crooked—that was the eternal invitation to pursuit and capture, the love-chase of high antiquity.

Source: wiktionary

Another pirate had landed there and a third was just arriving, two more aslide behind him.

Source: wiktionary